The 2015 MW 7.1 Earthquake on the Charlie-Gibbs Transform Fault: Repeating Earthquakes and Multi-modal Slip on a Slow Oceanic Transform

This is a Preprint and has not been peer reviewed. The published version of this Preprint is available: https://doi.org/10.1002/2016GL068802.

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Authors

Kasey Aderhold , Rachel E. Abercrombie

Abstract

The slow spreading rate Charlie-Gibbs Atlantic transform fault slips in large (M~7) quasi-repeating earthquakes. The foreshocks, aftershocks, and unilateral rupture of the 2015 earthquake are similar to a 1974 earthquake on the same transform. The findings of this study are consistent with transform earthquakes starting small near the ridge and large slip asperities nearer to the transform center.

DOI

https://doi.org/10.31223/osf.io/b7whn

Subjects

Earth Sciences, Geophysics and Seismology, Physical Sciences and Mathematics

Keywords

Earthquake source observations, earthquake, body waves, Transform faults, oceanic crust, Oceanic transform and fracture zone processes, Aftershock, Charlie-Gibbs, Foreshock, Mid-Atlantic Ridge, Oceanic transform faults

Dates

Published: 2017-11-04 17:28

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License

Academic Free License (AFL) 3.0

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